Lantern-globe.



No. 785,773. PATENTED MAR. 28, 1905. A. P. STORES.

LANTERN GLOBE.

APPLICATION FILED my 12, 1903.

2 SHEETS-SHEET 1.

Witnesses:

h 2% Inventor Attorney:

PATENTED MAR. 28, 1905. A. P. STORES. LANTERN GLOBE.

APPLICATION FILED MAY 12, 1903 2 SHEETS-SHEET 2.

- UNITED STATES Patented March 28, 1905.

PATENT OFFICE.

AARON P. STORRS, OF OWEGO, NEWV YORK, ASSIGNOR TO COMPANY, OF OWEGO,NEIV YORK. A CORPORATION OF STORRS MIOA NEIV YORK.

LANTERN-GLOBE.

SPECIFICATION forming part of Letters Patent No. 785,773, dated March28, 1905. Application filed May 12, 1903. Serial No. 156,752.

To aZZ whom it may concern:

Be it known that I, AARON P. SToRRs, a citizen of the United States,residing at Owego, in the county of Tioga and State of New York, haveinvented a certain new and useful Improvement in Lantern-Globes, ofwhich the following is a description.

The object I have in view is to produce a globe for lanterns employingmica as the transparent element which will have the necessary strengthand will be adapted to be received and retained by the holding deviceswith which lanterns are provided.

A mica lantern-globe has'great advantages, especially for firemens andbrakemens lanterns, which are subjected to exposure and rough handling;but heretofore it has not been regarded feasible to make globes of micawhich would have the necessary strength to withstand the compression ofthe spring-holders of the lantern and the rough handling to which suchglobes are subjected.

Some of the constructional features of my lantern-globe are applicablealso to lamp-chimneys.

ln carrying out my invention I make the lantern-globe of conical form,smaller at the top than at the bottom. It is constructed of panels ofmica each of the length of the globe, but occupying only a part of itscircumference. These panels are secured together lengthwise of the globeby folded metal strips, which receive the edges of the mica panels andhold them together. The side edges of each mica panel are cut onstraight lines which approach each other toward the top of the panel,while the top and bottom edges of the mica panels are cut on inward andoutward curves, respectively, so as to form true circles at the top andbottom when the panels are bent into a conical form to complete theglobe. These curved top and bottom edges of the mica panels are bound byfolded strips of metal, which are folded and formed into proper curvedform and are then pressed upon the edges of the mica panels and over theends of the longitudinal strips, securing the panels together. Beforethe binding-strip is pressed upon the upper edge of the panels a wideband of thin perforated sheet metal having 5 curved top and bottom edgesis inserted in the fold of the binding-strip with the upper edge of themica panels, so that the perforated metal band will be secured with thetop binding and will extend down over the mica panels, preferablyoutside of the mica, for a portion of the length of the globe. The micapanels are made up in this way in a flat form and are then rolled into aconical form, the strips at the meeting side edges being securedtogether by suitable tongues made integral with the top and bottom metalbindings and passing through slots in the vertical strips. The globemade in this way has great strength, due both to its conical form and tothe longitudinal metal 5 strips between the mica panels, as well as tothe wide band of perforated metal which extends from one end of theglobe over a portion of its length. This wide band of perforated metalalso permits the globe to be handled 7 without danger of injury to themica and, being perforated, does not entirely out off the light even inthat portion of the globe which is covered by it. To enable the globe tobe received and retained by the holding devices of the lantern and tofurther strengthen it, either or each end of the globe (according to thecharacter of the lantern-holding devices) is provided with a flangedring of metal made by folding a metal strip upon itself and roll- 30 iing it into circular form, such flanged ring having alaterally-projecting flange to rest on the globe-holding ring of thelantern, an inwardly-projecting flange which enters the lantern-globeand is secured to the metal binding 5 of the mica panels by friction,soldering, or otherwise, and an ou twardly-projecting flange whichenters the globe-holding ring of the lantern, this outwardly-projeotingflange having an inward bevel, so as to be readily in- 9 serted in thelantern-ring and so as to lit rings varying somewhat in size.

In the accompanying drawings, Figure l is an elevation of a typical formof lantern with my globe applied thereto, the perforations of the metalband at the top of the globe being indicated by a line of perforations.Fig. 2 is an elevation showing the mica panels secured together in flatform before being rolled into conical form. Fig. 3 is a horizontalsection of the globe. Fig. 4 is a horizontal section, on an enlargedscale, through the joint at the locked ends of the top or bottombinding-strip. Fig. 5 is a perspective view with the parts separated,illustrating the method of locking the ends of the binding-strips. Fig.6 is a section on line 6 6 in Fig. 4:. Fig. 7 is a vertical section ofthe globe broken away at the center to reduce the height of the figure.Figs. 8 and 9 are views of the preferred form of the flanged ring; andFig. 10 is an elevation, on a reduced scale, showing a single micapanel.

The globe is made up of mica panels A B C, each of which extends thelength of the globe, but only occupies a part of its circumference.These panels are cut with straight side edges, as shown in Fig. 10, thepanels being, however, narrower at the top than at the bottom, so as togive the desired conical form to the globe. The top and bottom edges ofthe panels are cut with an inward and outward curve, respectively, so asto form true circles when the panels are bent into the conical form. Thepanels are secured together at their side edges by metal strips D, whichare folded into an 8 form and are pressed down upon the adjoining edgesof the mica panels when the same are laid flat. As many of the panels(preferably three) as are required to form a globe are secured togetherby the strips 1) in a flat form, as shown in Fig. 2. The outer sideedges of the two outer panels are provided with metal bindings. One ofthese is a metal strip E, which is folded once upon itself and pressedon the outer edge of the outer panel A. The outer edge of the otherouter panel, C, is bound by a strip F, which is folded into an 8 formand receives the edge of the panel in one of these folds. Before thestrip F is pressed onto the edge of the panel C the panels are bound attheir top and bottom edges by strips G H, which are made of strips ofmetal folded once upon themselves. These strips have the inward andoutward curve shown in Fig. 2, which is produced by rolling the metalstrip onto a former after it is folded upon itself. These folded stripsG and H after being given this form are placed over the top and bottomedges of the mica panels and over the ends of the strips 1) and E andare pressed down, so as to clamp the parts in the folds. Before the topstrip G is pressed upon the edge of the mica panels a wide band I, ofthin perforated metal, having curved top and bottom edges, is placed inthe fold of the strip G, so as to be secured by the pressing of thatstrip down upon the mica panels. A few only of the perforations of theband 1 are shown in Figs. 1 and 2 of the drawings. It will beunderstood, however,

that the whole extent of the band is similarly perforated. Thebinding-strips G H have tongues a projecting from their ends. Thelongitudinal strip F is provided with a hole or slot Z), Fig. 5, in eachend. hen one fold of the strip F is pressed down upon the outer edge ofthe mica panel (1, the ends of the top and bottom bindings G H passthrough the holes 7), and the tongues a are bent backwardly over thestrip F to hold the parts more securely together. After being made inthe flat form, as shown in Fig. 2, the top and bottom bindings G H andthe wide band I are rolled into a conical form, so as to bringthestripsE and F together. The strip E is inserted in the unoccupied foldof the strip F, which also receives the ends of the bindings G H, thetongues a passing through the slots Z) and being bent backward to securethe parts together, as illustrated particularly in Fig. 4. To enable theglobe to be received and retained by the globe-holding devices of thelantern, it is provided at its top and bottom ends (one or both,according to the character of the lantern) with a flanged ring K, madeof folded metal rolled into a ring form and with its ends solderedtogether. This ring K has a lateral flange 0, which rests on theglobe-holding rings 2 and 3 of the lantern 1, an inwardlyprojectingflange d, which is inserted in the binding G or H and is held therein byfriction, by soldering, or otherwise, and an outwardly-prejecting flangee, which enters the globe-holding ring of the lantern. The flange c isbeveled inwardly, so as to fit rings varying somewhat in size.

The preferred construction of the flanged ring is shown in Figs. 8 and9. The crosssectional form is given to the ring by the steps illustratedin Fig. 8. A tongue f projects from one side of the fold forming thelateral flange c at one of the meeting ends of the ring and entersbetween the sides of the fold on the other end, when the fold may bepressed upon the tongue. The ring is rolled so that its meeting endsspring strongly toward each other, and the tongue f forms a sufficientfastening to keep the ends from moving out of alinement.

What I claim is 1. A mica lantern-globe having at one or at each end aflanged ring for engaging the globe-holding ring of the lantern, suchflanged ring having a lateral flange, an inwardly-beveled outwardflange, and an inward flange secured to the globe, substantially as setforth.

2. A mica globe or chimney of conical form made up of panels of micaeach occupying the entire length of the globe or chimney but only partof its circumference, such panels having straight side edges convergingupwardly and curved top and bottom edges, straight folded metal stripsrunning lengthwise of the globe or chimney and joining the mica panelstogether, and folded curved top IIO and bottom metal strips binding themica panels at their top and bottom edges and conforming to the curvesof such edges, substantially as set forth.

3. A mica globe or chimney of conical form made up of mica panelssecured together by folded straight metal strips and bound at their topand bottom edges by folded curved metal strips, and provided with a Wideband of perforated metal having curved top and bottom edges secured toone of the end bindings and extending inwardly therefrom over a portionof the mica, substantially as set forth.

4:. A mica globe or chimney having mica panels, top and bottom rings andconnecting metal strips, with a flanged ring at each end Within the topand bottom rings, and a Wide ring at the top outside of the mica, thesaid H. G. FOSTER, C. D. YOTHERS.

